Biological Factors Affecting Food Security Flashcards

1️⃣ Familiarise yourself with the flashcards:

Look through all the flashcards to see what's on both sides.
Make sure you understand the information on each card. If something's unclear, click the link to the revision notes at the bottom of the page for more details.

2️⃣ Test yourself:

Look at the question or prompt on each card and try to remember the answer before flipping it over.
Check the answer and make a note of any cards you find challenging and need to go over more.

3️⃣ Consistently Review and Practice:

Use spaced repetition: spend more time on the cards you struggle with and go over them more often.
Regularly review all the flashcards to help you better understand and retain the information over time.

Note: We may include questions that have multiple correct answers. It's useful to remember specific examples to understand these concepts better.

PERSONALISED 1-TO-1 TUTORING

Get support with clear explanations, practice and feedback (Ages 5 to 16).

Want an ad-free experience? Subscribe to remove ads

What is meant by food security?

Having enough safe, nutritious and affordable food for everyone, at all times.

More people need food, so demand rises and supplies can be stretched.

More people choose meat and high-value foods, which need more resources to produce, so less food is available overall.

Energy is lost between trophic levels, so animals need lots of feed, land and water to make the same food energy.

Insects, weeds and other pests damage crops, lowering yields and reducing the food supply.

Plant and animal diseases kill or weaken crops and livestock, cutting yields and meat or milk production.

Global travel and trade move them between countries, and warmer climates help some survive and spread.

More droughts, floods and heatwaves can reduce crop yields and change where crops can grow.

Fewer pollinators means less pollination, so many fruit and seed crops make lower yields.

It uses land and crops that could make food, so less food is produced and prices can rise.

Large areas of one crop are easy for a disease or pest to spread through, causing big losses.

Resistant pests survive spraying and keep damaging crops, so yields fall.